一、简便运算
46.3*0.56+5.38*5.6-1*0.056
=0.56*(46.3+53.8-0.1)
=0.56*100
=56
11*22+0.22*3300+330*4.4
=11*11*2+11*11*6+11*11*12
=121*(2+6+12)
=2420
二、解决问题
1. 0.14*0.25=0.035(吨)
2.(24-1)*8.68≈200(米)
3. 5+(5-2)*1.5=9.5(元)
一、简便运算
46.3*0.56+5.38*5.6-1*0.056
=0.56*(46.3+53.8-0.1)
=0.56*100
=56
11*22+0.22*3300+330*4.4
=11*11*2+11*11*6+11*11*12
=121*(2+6+12)
=2420
二、解决问题
1. 0.14*0.25=0.035(吨)
2.(24-1)*8.68≈200(米)
3. 5+(5-2)*1.5=9.5(元)